CN202020563U - Tooth pressure detecting instrument - Google Patents

Tooth pressure detecting instrument Download PDF

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Publication number
CN202020563U
CN202020563U CN2011200911482U CN201120091148U CN202020563U CN 202020563 U CN202020563 U CN 202020563U CN 2011200911482 U CN2011200911482 U CN 2011200911482U CN 201120091148 U CN201120091148 U CN 201120091148U CN 202020563 U CN202020563 U CN 202020563U
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China
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pick
pressure
teeth
detecting instrument
tester
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Expired - Fee Related
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CN2011200911482U
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Chinese (zh)
Inventor
王慰
张晨
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Hangzhou Sense Technology Co Ltd
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Individual
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Abstract

The utility model relates to a tooth pressure detecting instrument comprising a sensor for sensing pressure generated when teeth are in occlusion, a support for detachably clamping the sensor and a tester for reading data from the sensor, wherein the sensor is provided with a test plane in contact with the teeth when the teeth are in occlusion; one side of the support, which is in contact with an array part of the sensor, is transversely adjustable along the test plane, so that sensors with different sizes can be adapted and the sensor can be firmly fixed; and one side of the support, which is in contact with an interface part of the sensor, exposes the interface part of the sensor so as to be spliced with the tester to provide fixed and stable test.

Description

The teeth pressure detecting instrument
Technical field
This utility model relates to dental articulation force tester device, comprise biting pressure pick off, the support that can adapt to different pressure sensor dimensions and upturned position and tester, the pressure of dental articulation power and upper and lower sides tooth can be tested respectively, and pressure data dynamically can be obtained, collect, storage is handled and demonstration.
Background technology
In the process of carrying out dental diagnosis and test, in occasions such as diagnosis odontopathy and installation artificial tooths, the pressure distribution that the measurement patient's teeth is born is very helpful.For example, before diagnosing for the odontopathy patient or treating, often need to detect the interlock situation of lower tooth, and need sometimes last lower teeth is detected respectively.These detections make and show unbalanced pressure spot of tooth and numerical value in the position that the doctor contacts in the time of can understanding the patients teeth interlock at first, and can provide other relevant teeth to operate information dynamically.
For interlock being provided test exactly, testing equipment is preferably extremely thin, prevents to hinder the arrangement of the normal dental impression marking.Pick off must have higher resolution contacting and the noncontact point in order to the interlock information that provides usefulness and difference tooth.In addition, practical pick off must be safety and sanitation concerning the oral cavity.And should use easily the people who was not subjected to professional training.
Yet up to the present, this stress test pick off that is applied to dentistry is seldom.A kind of method of test interlock commonly used is that application class is similar to the same material of carbon paper.By at dental surface deposition marker, represent the contact point of interlock.Though the convenient cheapness of this method, the useful information that provides seldom.The resolution of this mode is low excessively, and especially for complicated tooth interacts, it is difficult in patient's the archives and keeps permanent record, for later case contrast causes difficulty.
Another interlock pick off is used the thin plastic sheet of stinging through patient to provide to engrave mark and is differentiated interlock information.This interlock vestige can use polarized light illumination to differentiate.This light is distinguished different contact points by different colors.The shortcoming of this method is: a very thick pick off is arranged, need well-trained people's analytical test result, and make the interlock pathological model that indicates the marking with complicated process.
Also have a kind of method also can finish bite analysis, comprise the making of X ray and patient's interlock sample, but these methods are too expensive, expended a large amount of time, and generally have not been suitable for the extensive use in dental clinic.So according to above analysis, a simple effectively cheap interlock method of testing is very important, it can provide high-resolution and the permanent patient files that keeps.It is very valuable for odontologist, and also is necessary in that the content relevant with interlock test done further research.
Summary of the invention
The purpose of this utility model is to propose a kind of teeth pressure detecting instrument, and this detecting instrument has high sensitivity, and part of detecting can be made as the thickness that has as thin as a wafer, thereby can reflect the real degree of engagement of tooth exactly.Described detecting instrument is simple to operate, and is easy to use, widely applicable.
Teeth pressure detecting instrument of the present utility model comprises: the pick off of the pressure that produces when being used for the sensing dental articulation, be used for the removably support of the described pick off of clamping, with the tester that is used for from sensor readings, wherein, described pick off has the test plane that contacts with tooth when dental articulation, described support has along the planar horizontal controllability of described test with a side that described sensor array partly contacts, so that can adapt to the pick off of different size fixes described pick off firmly, described support is exposing the interface section of pick off with the side that described sensor interface partly contacts, be convenient to peg graft, provide fixing and test stably with tester.
In teeth pressure detecting instrument of the present utility model, described support can adapt to different size sensors and upturned position, the interface that can guarantee pick off is gone up lower interface accordingly with tester and is connected securely, thereby can realize detecting the one-sided pressure of dental articulation power and upper and lower sides tooth, by making tester be connected for example USB interface and computer with external data processing device, pressure data dynamically can be obtained, collect, storage is handled and demonstration.The pcb board of tester has the change-over circuit of USB standard, and change-over circuit adopts the known method of prior art, and the data transaction of pick off is become the USB reference format, by lead and USB interface of computer with transfer of data to computer.And can utilize the power supply signal of USB interface of computer, give the circuit supply on the pcb board own, not need other tester power supply.
Description of drawings
Fig. 1 is a sketch map of showing the pick off of teeth pressure detecting instrument;
Fig. 2 schematically illustrates the controllability support;
Fig. 3 shown support can with being connected of pick off;
Fig. 4 has shown that the data that tester can read the different directions of pick off read;
Fig. 5 has shown the duty after being connected of teeth pressure detecting instrument and computer.
The specific embodiment
Further describe embodiment of the present utility model below with reference to accompanying drawing, but this utility model is not limited to this.
In Fig. 1, pliable pressure sensor senses device comprises head that is used to test and the shank that links to each other with head.Described head comprises the biting pressure sensing film with network that is positioned at the peripheral frame part that accommodates transfer bus and is positioned at frame part; Accommodate measuring circuit and the interface that is positioned at the shank end in the described shank.
The pick off of pliable pressure shown in Fig. 1 can be tested single side face (top) pressure data, and output interface is only at upside.W1 is the pick off integral width, and W2 is the sensor array column width, and W3 is the data-interface partial width.L1 is the pick off entire length, and L2 is a sensor array length, and L3 is circuit and interface section length.The size of pick off can have different sensor array size sizes according to oral cavity size: the length L 2 of array portion, width W 2 and network-like node number are many can be increased or dwindle.The length L 3 and the width dimensions W3 of circuit and interface section are constant.Entire length L1 and width W 1 can change along with the variation of W2 and L2.
Described pressure-sensing thin film is flexible, the occlusal surfaces of teeth that when dental articulation, reclines, and the physical property variation that the response biting pressure produces and this pressure size has functional relationship, and described measuring circuit can change described physical property be converted to the signal of telecommunication.In one embodiment, described pressure-sensing thin film comprises two thin polymer film (preferred polyester thin film, the example that is applicable to mylar of the present utility model comprises the Kapton thin film of E.I.Du Pont Company), wherein a slice thin film inner surface is laid tape conductor parallel to each other, another sheet thin film inner surface is laid the tape conductor parallel to each other that intersects with aforementioned tape conductor, thereby two thin film are integrated and constitute latticed node lattice structure.Conductor for example can adopt conventional conductive material to make, and for example is made of copper; In a specific embodiments, lay a large amount of banded copper conductor parallel to each other, another laying of sheet thin film inner surface and the perpendicular a large amount of banded copper conductor parallel to each other of aforementioned tape conductor at a slice thin film inner surface.Described conductor appearance scribbles the pressure-sensitive semiconductor material coating, and when external force affacted on the described node, semi-conductive resistance can change with external force.The pressure-sensitive semiconductor material coating can adopt method known in the state of the art to apply.For example, the nano-graphite powder is dispersed in the conductive ink that forms in the acetone solvent, joins in the insulation inks that the mixture by vinylite, butyl cellulose acetic acid fat and titanium dioxide filler forms, form application composition.Adopt this application composition to form the pressure-sensitive semiconductor material coating by silk screen printing.Conductive ink and insulation inks can also be bought on market, can control the resistive performance of pressure-sensitive semiconductor material coating by the ratio of regulating two kinds of inks.In a specific embodiments, adopt the 423SS conductive ink of Ai Qisen company and the application composition that the SS24210 insulation inks is prepared with 3: 7 weight ratio, by silk screen printing and the dry pressure-sensitive semiconductor material coating that forms about 50 micron thickness.Described pressure-sensitive semiconductor material coating resistance under pressure can descend.When external force affacted on the grid lattice point of described pressure-sensing thin film, the resistance of coated semiconductor can change with the functional relationship that external force is proportionate, when pressure is zero, and the resistance maximum, pressure is big more, and resistance is more little.To concrete pressure-sensitive semiconductor material without limits, can select material well known in the prior art.
In one embodiment, described pressure-sensing thin film comprises that the column conductor of massive parallel arrangement and the row conductor that massive parallel is arranged form The Mesh Point Battle, when interlock, the biting pressure that bears on the lattice point can be converted to the signal of telecommunication as the function of force value size, and this signal of telecommunication and corresponding column conductor and the position (address) of row conductor form test data together.Obviously, such date processing is easy to be treated to force value and force value distribution.
The gross thickness of described pressure-sensing thin film is preferably less than 0.2mm, even can be thinned to about 0.1mm.Therefore, pick off of the present utility model can reflect the situation of dental articulation more accurately than prior art.
The size of described pick off is determined according to testee oral cavity and tooth size.More specifically,, design the pick off of several different sizes, when making pick off enter the oral cavity test, can not bring inconvenience patient according to different testee oral cavities and tooth size (mainly being child and adult).Total a specific embodiments, the pick off dot matrix of large-sized pick off has more nodes, and undersized pick off has the corresponding node that lacks some, but all can satisfy the needs that all teeth are tested simultaneously.
According to actual needs, the width of pick off and network-like node number are many can be increased or dwindle, but preferred circuit and interface section size constancy, so the shank of preferred sensor is of similar shape and size.
The periphery of described biting pressure sensing film is the frame part that accommodates transfer bus, and the method that forms transfer bus is known in the prior art.Accommodate measuring circuit and the interface (see figure 1) that is positioned at the shank end in the described shank.
In order to read described pick off sensed signal, as shown in Figure 2, this utility model adopts support that pick off is fixed, so that in the process that detects for patient, pick off can not break away from tester.Described pick off has the test plane that contacts with tooth when dental articulation, along this test plane, described support is having horizontal controllability with a side that described sensor array partly contacts, so that the pick off of different size can be fixed firmly.In a specific embodiments (Fig. 2), described horizontal controllability provides by two resilient clamp arms are provided, and described resilient clamp arm can be from the described pick off of pick off two-side elastic ground clamping.
Support hollow, gap thickness is greater than colorimetric sensor films thickness (promptly greater than 0.2mm), and pick off can insert wherein.The width of the one side that support and sensor array partly contact and the integral width of pick off are consistent, its length is the length of sensor array, wherein some is a length (for example about 0.5cm-1cm) of blocking Sensor section, guarantees the fixing of pick off and support.Because the clamping limb on both sides is elastic, the integral width of the one side that partly contacts with sensor array of support is scalable, is applicable to pick off fixing of different sizes.
Can adopt known mode to make described clamping limb that thrust is provided when clamping.In one embodiment, the length of the undersized of the clamping limb of support between the pick off both sides, thus interference fit is provided when clamping.The preferred high plastic material of flexural modulus that adopts is made clamping limb, for example uses nylon 66.In addition, the device that improves elastic compression power can also be set, for example spring between clamping limb.
Advantageously, described clamping limb with surface that described pick off contacts on be distributed with convex-concave structure (for example groove), then being distributed with the structure that matches with described convex-concave structure on described pick off and the surface that described clamping limb contacts is corresponding convex-concave structure, thereby the convex-concave structure when the described pick off of described centre gripping arm clamping on the apparent surface can cooperatively interact, and forms firm between described clamping limb and the described pick off when clamping but dismountable combination thereby make.Can form described firmly but dismountable bonded mode can be utilized mode commonly known in the art, for example adopt to cooperatively interact to have the structure of threaded engagement between the surface.
Specifically in Fig. 2, support hollow, gap thickness are greater than colorimetric sensor films thickness, and pick off can insert wherein.During insertion, the interface section infra, array portion is last.For convenience, Fig. 2 is divided into two parts:
A) the integral width W1 of width of the first half of support (i.e. the one side that contacts with sensor array) and pick off is consistent, its length is the length L 2 of sensor array, the part of L2 is that the length of blocking Sensor section is L5 (being 0.5cm-1cm approximately), guarantees the fixing of pick off and support.Because the support arm on both sides is elastic, W1 is scalable, is applicable to the pick off of different sizes, can be used for the test of different oral cavities size.
B) length and width of support the latter half (i.e. the one side that contacts with sensor interface) are consistent with the length and width (L3 and W3) of the interface section of pick off.L4 is the circuit part that pick off was blocked and covered to the latter half, accounts for 20% of the latter half area, guarantees the fixing of pick off and support.Remaining part is exposed the interface section, guarantees that interface and the stable of tester are connected.
Described support is consistent in the length and width of the interface section of the length and width of a side that partly contacts with described sensor interface and pick off, and the part of its whole area (about 20% area) is the part of blocking with fixation of sensor, and covers the circuit part of pick off.All the other areas expose the interface section, link to each other with tester, guarantee pick off and fixed while of tester, and being connected of stable sensor interface and tester is provided, and guarantee that the normal stable detection of data is exported.
Fig. 3 shown adjustable support can with being connected of pick off, can be used for testing gmatjpdumamics (the upper jaw and the lower jaw one work) like this, perhaps the independent pressure distribution of maxillary.Support and pick off can overturn (for example according to the direction of arrow) together, can be used for testing respectively the teeth pressure data of maxillary or lower jaw like this.
Fig. 4 has shown that the data that tester can read the different directions of pick off read.Fig. 4 in two sub-sections, top schemes to show when sensor interface faces up a) that from left to right being connected successively of tester, support and pick off, pick off inserts in the support, sensor interface faces up and support inserts in the tester together.Tester has the upper and lower port, and the pressure data output of pick off can connect the upper port of tester; Lower part b) figure shows when sensor interface faces down, from left to right tester, support and pick off is connected successively, pick off inserts in the support, the sensor interface face down and support insert together in the tester, after pick off and support overturn together, be connected to lower port.By this layout, guaranteed reading of data that the upper jaw and the lower jaw are tested respectively.
The data output interface of pick off is one-sided, and in some test, its interface upwards, sometimes interface is downward, tester inside has the interface of two correspondences, and one faces down, and one faces up, as long as turnover bracket, no matter pick off is forward or oppositely inserts that tester can both be read pressure data, is transferred to the collection that computer carries out data by for example USB, storage is handled and demonstration.
Fig. 5 has shown that pick off, support and tester link to each other, and is connected with computer by for example USB interface, and the user can collect by the software of computer like this, stores, and handles and show in real time the pressure distribution of tooth.In one embodiment, described tester comprises pcb board (printed circuit board (PCB)), this pcb board has and is suitable for the electrode that links to each other with the data-interface of pick off, pcb board also has the change-over circuit of USB standard, this change-over circuit can use the prior art known method to make, the sensor test data that electrode can be transmitted become the data format that USB requires by this change-over circuit, pass through lead and USB interface of computer again, and data are reached computer.
USB change-over circuit on the pcb board of tester also can be accepted the power supply signal from the USB interface of peripheral computer, with the power supply signal of the interface of this computer USB power supply signal as tester, the operation of supplying with all circuit on the PCB needs, therefore, described tester itself can not need other power supply.

Claims (10)

1. teeth pressure detecting instrument, comprise: the pick off of the pressure that produces when being used for the sensing dental articulation, be used for the removably support of the described pick off of clamping, with the tester that is used for from sensor readings, it is characterized in that, described pick off has the test plane that contacts with tooth when dental articulation, described support has along the planar horizontal controllability of described test in a side that contacts with described sensor array, so that can adapt to the pick off of different size fixes described pick off firmly, described support is exposing the interface section of pick off with the side that described sensor interface partly contacts, so that peg graft with tester.
2. teeth pressure detecting instrument as claimed in claim 1, it is characterized in that, described support has two resilient clamp arms, be used for from the described pick off of sensor array two-side elastic ground clamping, described clamping limb with surface that described pick off contacts on be distributed with convex-concave structure, correspondingly be distributed with convex-concave structure on described pick off and the surface that described clamping limb contacts, thereby described convex-concave structure can cooperate when the described pick off of described clamping limb clamping.
3. teeth pressure detecting instrument as claimed in claim 1, it is characterized in that, described pick off is the latticed tactile pressure pick off of fexible film, comprise head that is used to test and the shank that links to each other with head, described head comprises the biting pressure sensing film with network that is positioned at the peripheral frame part that accommodates transfer bus and is positioned at frame part, accommodates measuring circuit and the interface that is positioned at the shank end in the described shank.
4. teeth pressure detecting instrument as claimed in claim 3, it is characterized in that, described pressure-sensing thin film is flexible, occlusal surfaces of teeth reclines when dental articulation, and the physical property variation that the response biting pressure produces and this pressure size has functional relationship, described measuring circuit can change described physical property be converted to the signal of telecommunication.
5. teeth pressure detecting instrument as claimed in claim 3, it is characterized in that, described pressure-sensing thin film comprises two thin polymer films, wherein a slice thin film inner surface is laid tape conductor parallel to each other, another sheet thin film inner surface is laid the tape conductor parallel to each other that intersects with aforementioned tape conductor, thereby two thin film are integrated and constitute latticed node lattice structure, described conductor appearance scribbles the pressure-sensitive semiconductor material coating, when external force affacted on the described node, semi-conductive resistance can change with external force.
6. teeth pressure detecting instrument as claimed in claim 3 is characterized in that, the size of described pick off determines that according to testee oral cavity and tooth size the thickness of described pressure-sensing thin film is less than 0.2mm.
7. teeth pressure detecting instrument as claimed in claim 3 is characterized in that, the thickness of described pressure-sensing thin film is 0.1mm.
8. as each described teeth pressure detecting instrument among the claim 1-7, it is characterized in that, the data output interface of described pick off only be arranged on one-sided on, the input interface that described tester inside has two correspondences, an input interface faces down, another input interface faces up, thereby described pick off is pressed either direction in the both direction when inserting, and described tester can both be read pressure data.
9. as each described teeth pressure detecting instrument among the claim 1-7, it is characterized in that, described tester comprises having the pcb board that has electrode, described electrode can link to each other with the data-interface of pick off, described pcb board has the change-over circuit of USB standard, the data format that the sensor test transformation of data that is used for that described electrode is transmitted becomes USB to require.
10. as each described teeth pressure detecting instrument among the claim 1-7, it is characterized in that, USB change-over circuit on the pcb board of described tester can be accepted the power supply signal of the USB interface of peripheral computer, as the power supply signal of described tester, supplies with all circuit on the described PCB.
CN2011200911482U 2011-03-31 2011-03-31 Tooth pressure detecting instrument Expired - Fee Related CN202020563U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103226658A (en) * 2013-04-16 2013-07-31 江苏物联网研究发展中心 Auxiliary system for dental diagnosis and restoration
CN104997569A (en) * 2015-07-28 2015-10-28 安徽机电职业技术学院 Comprehensive tooth measuring instrument based on detachable tooth socket
CN105012039A (en) * 2015-07-28 2015-11-04 安徽工程大学 Comprehensive tooth measuring instrument
CN105982761A (en) * 2014-10-15 2016-10-05 财团法人金属工业研究发展中心 Electronic occlusion evaluation device
CN109259803A (en) * 2011-12-16 2019-01-25 佩里梅特里克斯有限责任公司 System and method for determining the architectural characteristic of object
CN112914774A (en) * 2021-01-26 2021-06-08 安徽中科本元信息科技有限公司 Digital oral occlusion analysis system and analysis method based on cloud platform

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109259803A (en) * 2011-12-16 2019-01-25 佩里梅特里克斯有限责任公司 System and method for determining the architectural characteristic of object
CN109259803B (en) * 2011-12-16 2021-04-16 佩里梅特里克斯有限责任公司 System and method for determining structural characteristics of an object
CN103226658A (en) * 2013-04-16 2013-07-31 江苏物联网研究发展中心 Auxiliary system for dental diagnosis and restoration
CN103226658B (en) * 2013-04-16 2016-05-04 江苏物联网研究发展中心 Tooth diagnosis accessory system
CN105982761A (en) * 2014-10-15 2016-10-05 财团法人金属工业研究发展中心 Electronic occlusion evaluation device
CN104997569A (en) * 2015-07-28 2015-10-28 安徽机电职业技术学院 Comprehensive tooth measuring instrument based on detachable tooth socket
CN105012039A (en) * 2015-07-28 2015-11-04 安徽工程大学 Comprehensive tooth measuring instrument
CN112914774A (en) * 2021-01-26 2021-06-08 安徽中科本元信息科技有限公司 Digital oral occlusion analysis system and analysis method based on cloud platform

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